Curriculum>Grade 2> Module 4>Topic E: Column Subtraction with Exchanging into the Hundreds

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Students will solve 2- and 3-digit column subtraction equations within 200 with and without making exchanges into the 10s and 100s. Students practice this skill without prompting and independently determine if exchanges are necessary

A. Solve 2- and 3-digit column subtraction equations by exchanging 100 for 10 tens to solve

B. Solve more 2- and 3-digit column subtraction equations by exchanging 100 for 10 tens with or without prompts

C. Solve 2- and 3- digit column subtraction equations with and without exchanging into the hundreds

D. Solve 2- and 3-digit column subtraction equations that require making exchanges into the hundreds and tens, with prompts

E. Solve 2- and 3-digit column subtraction equations by exchanging and regrouping with hundreds and tens